3gb Raid

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How Do SSDs Redefine Storage Performance?

It only takes one or two modern SSDs to outperform business-class RAID arrays with four or eight hard drives. We're running a full comparison and looking at the implications for high-performance systems when you make the transition to flash-based tech.

Hardly a week goes by without some new SSD product release, and the market remains in a rather volatile state, both despite and because of this continuing growth. Solid state drives come and go, but there are a precious few, such as Intel, that deservedly stick around.

Similarly, controller vendors, including JMicron, Indilinx, and SandForce, have been making impressive progress.

Hard drive manufacturers Toshiba and Western Digital offer SSDs, although these still lack a bit of punch.

One of the latest products is Samsung's 470-series, the first toggle mode DDR-based flash SSD drive. It increases performance through the same double data rate memory technology that many of you are familiar with from PC main memory. That struck us as reason enough to grab two of these SSDs and put them up against a serious RAID array with 15 000 RPM enterprise hard drives.

Just How Fast Are Solid state Drive?

That SSDs can beat the pants off hard drives isn't exactly news anymore. Tech enthusiasts and IT personnel also understand the value of 200+ MB/s performance, low power consumption, and physical robustness along with the potential pitfalls of older operating systems. Real tech addicts will go into the nitty gritty of I/O performance, power efficiency, and architectural details on caching, wear leveling, TRIM, and RAID support. These details can make a significant difference on the performance side of storage.

Samsung's new 470-series SSDs serve as perfect candidates for a shootout between SSDs and serious hard drive RAID arrays because the drives represent the latest technology in PC flash storage products. You won't find performance comparison with other SSDs in this article; for that, check out our most recent SSD roundup.

In this article, we compare two Samsung 256 GB SSDs against four and eight Fujitsu MBA3147RC 15 000 RPM enterprise hard drives using an enterprise-class SAS RAID controller. All setups utilize RAID 0 to maximize performance.

SSD Developments

When discussing SSD performance, it's important to define what performance actually means. The term is either used to measure speed or to look at metrics like power consumption, efficiency, or performance per watt. In the storage segment, capacity per dollar or per watt can be key metrics, while top-performance systems, particularly in enterprises, can benefit from high I/O performance per watt.

Consumers will look at throughput numbers first, which range anywhere from 180 to more than 300 MB/s for sequential read operations and 80 to 300 MB/s for writes. Most products are limited by the SATA 3Gb/s interface to less than 300 MB/s peak performance, but even the few drives available with 6 Gb/s interfaces aren't always the best choice, since their I/O performance doesn't scale with interface bandwidth. All the horsepower in the world doesn't matter if you're stuck at an intersection.

Most SSD are based on multi-channel architectures that combine various flash memory lines to maximize performance. Because of this, increasing interface bandwidth might not always be necessary. The only item left to improve is the flash memory itself.

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Find 3gb Raid On eBay Below:

Asus PIKE 1068E LSI 8 Port SATA II SAS 3 Gb s per PHY RAID Card
Asus PIKE 1068E LSI 8 Port SATA II SAS 3 Gb s per PHY RAID Card
$29.88
LSI MegaRAID 8708EM2 3 Gb s 8 port SAS SATA ROC RAID Adaptor
LSI MegaRAID 8708EM2 3 Gb s 8 port SAS SATA ROC RAID Adaptor
$24.99
IBM 57CD 3Gb LP PCIe RAID and SSD SAS Adapter 74Y9678 74Y9679 Low Profile Brack
IBM 57CD 3Gb LP PCIe RAID and SSD SAS Adapter 74Y9678 74Y9679 Low Profile Brack
$578.00
LSI SAS8344ELP 4 Port Ext 4 Port Int SAS SATA 3Gb s RAID Controller Latest FW
LSI SAS8344ELP 4 Port Ext 4 Port Int SAS SATA 3Gb s RAID Controller Latest FW
$29.95
IBM LSI Logic SAS3445E R RAID Controller Card Desktop 3Gb s 44E8701 L3 25139 00F
IBM LSI Logic SAS3445E R RAID Controller Card Desktop 3Gb s 44E8701 L3 25139 00F
$68.02
AOC USAS L4I Supermicro 8 Port 4 internal4 external SAS 3Gb s RAID Controller
AOC USAS L4I Supermicro 8 Port 4 internal4 external SAS 3Gb s RAID Controller
$38.00
LSI L1 01116 05 MegaRAID SAS 4 Port 3Gb s SAS RAID Controller w BBU
LSI L1 01116 05 MegaRAID SAS 4 Port 3Gb s SAS RAID Controller w BBU
$28.00
ADAPTEC ASR 5805Z 512MB SAS 3Gb s SATA SAS 8I PORT RAID CONTROLLER 2266900 R
ADAPTEC ASR 5805Z 512MB SAS 3Gb s SATA SAS 8I PORT RAID CONTROLLER 2266900 R
$12.30
IBM 44V5556 57B7 5909 SAS 3Gb 2 Port PCIe x8 DDR RAID Adapter pSeries
IBM 44V5556 57B7 5909 SAS 3Gb 2 Port PCIe x8 DDR RAID Adapter pSeries
$99.00
LSI Logic MegaRAID 8704ELP 4 Port PCI Express 3Gb s SAS SATA RAID Controller
LSI Logic MegaRAID 8704ELP 4 Port PCI Express 3Gb s SAS SATA RAID Controller
$49.00
IBM 44V4854 5911 57BA SAS 3Gb 2 Port PCIe x8 DDR RAID Adapter DASD pSeries
IBM 44V4854 5911 57BA SAS 3Gb 2 Port PCIe x8 DDR RAID Adapter DASD pSeries
$89.00
Intel LSI MegaRAID SAS 8208ELP 8 port PCI E 3Gb s RAID 5 Controller L3 01105 06A
Intel LSI MegaRAID SAS 8208ELP 8 port PCI E 3Gb s RAID 5 Controller L3 01105 06A
$27.71
HighPoint RocketRAID 2314 4 Channel PCI Express x4 eSATA 3Gb s RAID Controller
HighPoint RocketRAID 2314 4 Channel PCI Express x4 eSATA 3Gb s RAID Controller
$24.98
Promise Supertrak EX8650 RAID PCIe x8 SATA 3Gb s SAS with battery module
Promise Supertrak EX8650 RAID PCIe x8 SATA 3Gb s SAS with battery module
$80.00
LOT OF 2 Adaptec PCA 00275 05 D ASR 5805 512MB 3Gb s SATA SAS RAID Controller
LOT OF 2 Adaptec PCA 00275 05 D ASR 5805 512MB 3Gb s SATA SAS RAID Controller
$54.99
Adaptec ASR 2405 SAS SATA 4 port 3 GB s 8x PCIE 2405 RAID Adapter
Adaptec ASR 2405 SAS SATA 4 port 3 GB s 8x PCIE 2405 RAID Adapter
$12.99
Supermicro 8 Port PCI E SAS SATA 3Gb s Raid Card AOC USAS H8IR
Supermicro 8 Port PCI E SAS SATA 3Gb s Raid Card AOC USAS H8IR
$29.99
Intel SASUC8I SAS SATA 3Gb s PCIe x8 Low Profile RAID Controller Refurbished
Intel SASUC8I SAS SATA 3Gb s PCIe x8 Low Profile RAID Controller Refurbished
$75.00
Adaptec ASR 3085 256MB 8 Port 3Gb s SATA SAS RAID Controller Card
Adaptec ASR 3085 256MB 8 Port 3Gb s SATA SAS RAID Controller Card
$58.00
Promise SuperTrak EX16650 16 Ports SAS SATA 3Gb s PCIe x8 512MB RAID Controller
Promise SuperTrak EX16650 16 Ports SAS SATA 3Gb s PCIe x8 512MB RAID Controller
$169.98
IBM 74Y6511 5805 SAS 3Gb 2 Port PCIe x8 380MB DDR RAID Adapter Card
IBM 74Y6511 5805 SAS 3Gb 2 Port PCIe x8 380MB DDR RAID Adapter Card
$207.64
LSI SAS3081E R 8 Port 3GB s PCI E Dual Port SAS SATA Internal RAID Controller
LSI SAS3081E R 8 Port 3GB s PCI E Dual Port SAS SATA Internal RAID Controller
$14.99
HighPoint RocketRAID 2314 4 Channel PCI Express x4 eSATA 3Gb s RAID Controller
HighPoint RocketRAID 2314 4 Channel PCI Express x4 eSATA 3Gb s RAID Controller
$100.00
Intel RKSAS8R5 3 Gb s C600 8 Port RAID SAS Upgrade Key New
Intel RKSAS8R5 3 Gb s C600 8 Port RAID SAS Upgrade Key New
$79.00
Lot of 2 IBM 44V3469 SAS 3GB DUAL x4 PCIe x8 DDR RAID Adapter 57B9 yz
Lot of 2 IBM 44V3469 SAS 3GB DUAL x4 PCIe x8 DDR RAID Adapter 57B9 yz
$250.00
IBM 74Y6511 5805 SAS 3Gb 2 Port PCIe x8 380MB DDR RAID Adapter Card w battery
IBM 74Y6511 5805 SAS 3Gb 2 Port PCIe x8 380MB DDR RAID Adapter Card w battery
$62.00
USAS H4IR Supermicro 3Gb s 4 Internal And 4 External Ports SAS Raid Adapter
USAS H4IR Supermicro 3Gb s 4 Internal And 4 External Ports SAS Raid Adapter
$82.99
AOC USAS H4IR SUPERMICRO 3GB S 4 INTERNAL AND 4 EXTERNAL PORTS SAS RAID ADAPTER
AOC USAS H4IR SUPERMICRO 3GB S 4 INTERNAL AND 4 EXTERNAL PORTS SAS RAID ADAPTER
$82.99
L3 251225 00C Supermicro 3Gb s 4 Internal And 4 External Ports SAS Raid Adapter
L3 251225 00C Supermicro 3Gb s 4 Internal And 4 External Ports SAS Raid Adapter
$82.99
Intel SRCSASJV RAID Controller Low Profile PCIe 3Gb s SAS SATA New Card Only
Intel SRCSASJV RAID Controller Low Profile PCIe 3Gb s SAS SATA New Card Only
$199.00
Supermicro AOC USAS L4I 3Gb s 8 Port 4 Internal 4 External SAS UIO Mega raid
Supermicro AOC USAS L4I 3Gb s 8 Port 4 Internal 4 External SAS UIO Mega raid
$27.94
OEM Adaptec AAR1420SA 3GB SATA II PCI X Raid Controller Card Without Cable
OEM Adaptec AAR1420SA 3GB SATA II PCI X Raid Controller Card Without Cable
$14.63


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